For their walk down the pink carpet at the Segerstrom Center for the Arts Lily donned a wine-colored Gucci mini, Ale showed off her tan gams in a gold Balmain number and Mrs. Bloom put her ample cleavage on display in a leopard print Dolce & Gabbana silk dress.

Zayn previewed the duet by posting a black and white pic of himself with Swifty on his Instagram -- but hey, she is bestiez with his girlfriend Gigi Hadid, so it wouldn't be unusual that they hang out... But collab?!